[blueash]

Here is a common death certificate from the pre-vaccine era. Cause of death, Diphtheria

I'll bet his mother would have happily accepted vaccines instead of depending on his three year old immune system to have the opportunity to build up immunity on its own. You obviously don't understand how vaccines work or that you don't get an opportunity to build up immunity to potentially fatal illnesses. How would you like a chance to build up your immunity to Ebola? Some people do survive it and they are forever immune to the next exposure (unless it mutates)